[Xapian-discuss] Query / Database question

Olly Betts olly at survex.com
Wed Feb 21 10:55:26 GMT 2007

On Wed, Feb 21, 2007 at 10:33:10AM +0000, Ross Lawley wrote:
> i.e. Categories might be: car, bike and bicycle.
> The user may want to search:
> "bmw london" and select the car category
> or
> "nottingham" and select all categories
> Is that something that is easy to implement through the Xapian query
> interface?

Yes, see docs/termprefixes.txt in the Omega documentation for details.

Essentially, if the scriptindex input file has a field called "category"
your index script would have:

category : lowercase boolean=XCAT

Then if you're using Omega, you can pass a "B=XCATcar" as a parameter,
which you can allow the user to specify in an HTML form with a
"<select>" or radio buttons or whatever.

You can also set up the QueryParser to allow "category:car" in the query


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